Vietnam, Thua Thien – Hue Prov., A Luoi Distr., Huong Nguyen Municipality, about 8 km to the N of Tra Ve forest protection station, around point 16°17'17''N, 107°26'40''E at elevation about 240 m a.s.l. Secondary closed evergreen broad-leaved forest on steep hill and mountain slopes composed with shale along stream valley. Lithophytic herb on shady vertical waterfall cliff. Tepals whitish with brown stripes. Not common.
Record creation: 2020-08-26, Аверьянов Леонид ВладимировичCitation: Specimen LE 01087423 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01087423